Private

Server IP : 195.201.23.43 / Your IP : 3.23.60.252
Web Server : Apache
System : Linux webserver2.vercom.be 5.4.0-192-generic #212-Ubuntu SMP Fri Jul 5 09:47:39 UTC 2024 x86_64
User : kdecoratie ( 1041)
PHP Version : 7.1.33-63+ubuntu20.04.1+deb.sury.org+1
Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,
MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON
Directory : /lib/ruby/2.7.0/did_you_mean/

Upload File :

[ HOME SHELL ]

Current File : /lib/ruby/2.7.0/did_you_mean//spell_checker.rb

# frozen-string-literal: true

require_relative "levenshtein"
require_relative "jaro_winkler"

module DidYouMean
  class SpellChecker
    def initialize(dictionary:)
      @dictionary = dictionary
    end

    def correct(input)
      input     = normalize(input)
      threshold = input.length > 3 ? 0.834 : 0.77

      words = @dictionary.select { |word| JaroWinkler.distance(normalize(word), input) >= threshold }
      words.reject! { |word| input == word.to_s }
      words.sort_by! { |word| JaroWinkler.distance(word.to_s, input) }
      words.reverse!

      # Correct mistypes
      threshold   = (input.length * 0.25).ceil
      corrections = words.select { |c| Levenshtein.distance(normalize(c), input) <= threshold }

      # Correct misspells
      if corrections.empty?
        corrections = words.select do |word|
          word   = normalize(word)
          length = input.length < word.length ? input.length : word.length

          Levenshtein.distance(word, input) < length
        end.first(1)
      end

      corrections
    end

    private

    def normalize(str_or_symbol) #:nodoc:
      str = str_or_symbol.to_s.downcase
      str.tr!("@", "")
      str
    end
  end
end

Private